What Is Genetic Variability?

Genetic variation refers to the difference in DNA level between different individuals in the same gene bank on the basis of heredity, also known as "molecular variation", which is also a qualitative or Quantitative description. Heredity and mutation are phenomena that are constantly occurring in the biological world, and are the basis of species formation and biological evolution.

Genetic Variation

The phenomenon in which the parents of an organism can produce offspring similar to itself is called heredity.

From the perspective of heredity, heredity is a similar phenomenon between parents and offspring. Its essence is that the organism obtains material from the environment according to the developmental methods and methods of the parent, and produces a replica similar to the parent. Heredity is relatively stable, and organisms do not easily change the developmental pathways and methods inherited from their parents. Therefore, the appearance of the parents and their good traits are likely to be

Mutation is a general characteristic of living things. Even before humans found the virus, they started using mutations to make vaccines. For example, in 1884,

In an era when people cannot know what genetic material is, people believe in the adaptability of life to the living environment. They believe that this will make organisms perfect and can be inherited. This is Lamarck s theory of evolution. Organs are becoming more developed, and abandoned organs often become traces

Microbial genetics was born in the 1940s as an independent discipline. Viral genetics, as an important component of microbial genetics, has played an important role in promoting the study of biological genetics and mutation, and has also laid the foundation for the development of molecular genetics. . Many biological characteristics of the virus, including its simple structure, asexual proliferation mode, cell culture, rapid proliferation, and easy purification, make it a unique advantage as a material for genetic research. As we all know, the material basis of various biological inheritance, including viruses, is nucleic acids. In fact, the first direct evidence for this conclusion came from the study of viruses.

The genetic variation of a virus is often a "population", which is the common expression of countless virions. Viral components, especially virus-encoded enzymes and proteins, are often mixed with normal cell enzymes and proteins. This obviously increases the complexity of characterizing the genetic variation of the virus.